Ventilating apparatus



March 31, 1931. G. G. GROTHAUS VENTILATING APPARATUS Filed May 1'7, 1928 2 Sheets-Sheet l 7 1 m iww L m n Mm ,1 u S Pm l 1% a J J Q N N N\ INVENTOR.

March 31, 1931. G. G. GROTHAUS VENTILATING APPARATUS Filed May 1'7, 1928 2 Sheets-Sheet 2 Jilin] @INVENTOR.

Patented Mar. 31, 1931 UNITED STATES PATENT OFFICE GERHARD e. GBOTI-IAUS, or CINCINNATI, OHIO, ASSIGNOR '10 enonan scnmm'r, .Ia, or MOUNT HEALTHY, OHIO VENTILATING AEPABATUS Application filed May 17,

My invention relates to improvements in ventilating apparatus. One of its objects is to provide improved ventilating apparatus whereby dwellings, barns, stables and similar buildings maybe freed automatically from foul or damp air and gases and afi'orded occupants. My invention also comprises certain details of form and arrangement and combination of components, all of which will be fully set forth in the description of the accompanying drawings, in which: p

Fig.1 is a vertical section through a twostory building illustrating the application of my improved ventilating apparatus thereto taken on line 11o:t Fig. y

Fig. 2 is a side elevation of a portion of the building showing the ventilating apparatus in side elevation.

Fig. Sis aperspective view of one of the ventilating members detached.

Fig. 4 is a perspective view of another 0 saidventilating members, detached. 2

Fig. 5 is a perspective view of another ventilating member, detached. I I

The accompanying drawings illustrate modifications offmy invention, in which 15 represents the side wall of a building, 16 the roof, 17 the first or ground floor and 18 the second floor. For the purpose of ventilat ing the ground floor room two ventilating ports 20 and 21 are provided through the side wall 15 of the building. A ventilating member which is shown in Figs. 1 and 2 as constructed of sheet metal is attachedto the exterior of the side wall 15 to register with the ventilating ports 20 and 21. This ventilating member comprises a main or upper section 22 the lower portion of which is fitted over the outer end of the port 20, and an apron section 2& the upper end of whichis fitted over the outer end of the ventilating port 21. A partition 25 separates the interior chain 192s. Serial No. zvasas.

bers of the upper sectionfrom the chamber oi the lower section. Then the ventilator ports 20 and 21 are open and the ventilator is in operation the warmer air within the ground. floor room being near the ceiling tendsnaturally by convection to escape from the room through theport 20 into the interior chamber 26 of the upper section 22 and thence through one or other of the ports 27 and 28 leading to the external atmosphere from the chamber 26. Section 22 has extended ledges 56 and 57 adapted to prevent the entrance of rain or snow into the chamber 26. At the same time, and as a part of the ventilating operation cool dry air from the external atmosphere enters the chamber 29 of the section 24 from below and thence enters the port 21 to the ground floor room to take the place of a substantially equal volume of air displaced through the port 20. The air taken-in through the port 21 may be discharged into the room just below the exit port 20, and the incoming air allowed to flowdownwardly inside the room, or if desired the port 21 may be extended downwardly within the confines of the 1 wall 15 as shown in Fig. 1, so as to discharge the air from port2'l intothe room near-tho ground floor. The section 22 protects the port 20 fromentrance of rain or snow, and from air currents of high velocity, and permits the air to escape with the external air currents in eitherdirection. The section 2 1 protects the port 21 against the entrance of rain, snow or air cnrrents of high velocity, and permits a freecirculation of air to the room to replace that air escaping through the port 20. i I

f The second story room is provided with an air exit port 30; through the roof or ceiling 16 thereofland an airinlet port 31 through the sidewall 15 thereof near and slightly above the floor 18. The second story ventilating apparatus as illustrated is constructed from sheet metal in two independent members 82 and 33.' The member 32 is fitted andsecured over the outer end of the air exit port 30 and extends upwardly therefrom, and is provided with an interior chamber 34 having two exit ports 85 and 36 leading from the upper and opposite extremities thereof for the escape of air therefrom. The member 32 has overhanging roof sections 58 and 59 which serve to prevent the entrance of rain or snow or air currents into the ports 35 and 36 to reach the port 30. The member 33 is attached over the outer end of the port 31 and protects said port 31 against the entrance of rain, snow or air currents of velocity and permits air to enter upwardly into the interior chamber 37 of member 33 and thence through port 31 to take the place of air escaping from the room through port 30. The air contents of the second story room is thus kept cool pure and dry, and frequently changed. Doors. 38 serve to, close or partly close the air exit ports when desired, and doors 39 to close or partly close the air inlet ports when desired.

The ventilating sections 22 and =24 are adapted to be constructed in one piece from sheet metal being provided with flanges 42 which fit against the outer face of the side wall 15, and are adapted to be attached firmly thereto by means oi nails or screws. The ventilating sections 22 and 24, may, if desired, be constructed of Wood or molded in concrete and built into the wall 15 in place of being constructed of sheet metal and attached to the exterior of the wall. For barns, stables and factories the sheet metal type has advantages of low cost, manufacture in quantity and convenient transportation and application by unskilled labor.

The ventilating members 32 and 33 as illustrated are constructed from sheet metal and are provided with flanges 4;3 and t l by means of which they are-adapted to be conveniently attached to the building. Theseventilating members 32 and 33 may be constructed. of other materials such as wood, cast iron or concrete if desired,

The apparatus herein'shown and described is capable of considerable modification within the scope of the claims withoutdeparting from the spirit of my invention;

What I claim is;

1. A ventilating apparatus comprising in combination with a room having an air inlet port and an air exit port, a ventilating member attached to the wall of the room and project-ing exteriorly thereof, said ventilating member having an airexit chamber in communication with the air exit port'of the-room, a plurality of air exit ports through the walls of said air exit chamber, the walls of said chamber being outwardly andupwardly flaring, and a downwardly extending apron forming an air inlet chamber in communication with the air inlet port to the room into which external air enters upwardly and es,- capes through the room air inlet port; to. the room.

2. A ventilating apparatus comprising in combination with a room having an air inlet port and an air exit port,'a ventilatorsection connnunicating with the air exitport of air exit ports through the walls of said air exit chamber, the walls of said chamber being outwardly andupwardly flaring, and a ventilator section extending exterior-1y oi the room and having an air inlet chamber communicating with the air inlet port into which the air enters upwardly and from which the air escapes through said air inlet port to the room.

3. A ventilating apparatus comprising in combination'with a room having an air inlet port and an air exit port, a ventilator section communicating with the air exit port and prov ded with an air exit chamber extending exteriorly of said room, a plurality of oppositely located and weather protected air exit ports through-the walls of said air exit chamber, the walls of said chamber being outwardlyand upwardly flared, and a ventilator section extending exteriorly ofthe room and having an air inlet chamber open at its bottom andcommunicating at its upper end with the room air inlet port and into which air inlet chamber the air enters upwardly and from which the airescapes through said air inlet ort to the room.

4; ventilating apparatus comprising in combination with a room having an air inlet port and an air exit port, a ventilator section communicating with the air exit port and provided with a room air exit chamber wider at the top than at its bottom extending exteriorly of said room and having a plurality of oppositely located air exit ports, weather protecting members projecting from the roof of said'chamber above and overhanging said air exitports, and a ventilating section extending exteriorly of the room and, having an air inlet chamber open at its bottomand communicating at its upper end with theroom air inlet port and into which air inlet chamber the air enters and from which; the air escapes through said air inlet port to the room. e

5. A ventilating apparatus comprisingin combination with a room having an air inlet port and an air exit port, a sheet metal ventilator adapted to be attached exteriorly to a side wall of said room over said; air inlet and exitports, and comprising an upwardly and outwardlyflared air exit section having exit ports throughropposite upwardly and outwardly inclined walls thereof and receivcommunicating wi h the aire it P9 7 nd i provided with an upwardly and outwardly flared air exit chamber extending exteriorly of said room and having a plurality of exit ports located in the upwardly and outwardly inclined walls of said exit chamber, and a ventilator section extending exteriorly of the room and having an air lnlet charnber communicating with the air 1IllBt%)0It into which the air enters upwardly and rom which the air escapes through said air inlet port to the 13 room, and means to cut off the air circulation through said ventilator sections manual- 1y operable from the interior of said room.

In testimony whereof I have afiixed my signature.

' GERHARD G. GROTHAUS. 

